Triflyl group



In organic chemistry, the triflyl group (systematic name: trifluoromethanesulfonyl group) is a functional group with the formula R\sSO2CF3 and structure R\sS(\dO)2\sCF3. The triflyl group is often represented by –Tf.

The related triflate group (trifluoromethanesulfonate) has the formula R\sOSO2CF3, and is represented by –OTf.